mayuroks

package com.example.sigsegvapp

/*
* Notes:
* 
* OpWeight function to get weight of an op
* Max function to return highest of two ops 
*
* Evaluate entire string for all operators
* Save highest and leftmost operator

mayuroks

import com.google.inject.Singleton;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

@Singleton
public class YouTubeHelper {

    final String youTubeUrlRegEx = "^(https?)?(://)?(www.)?(m.)?((youtube.com)|(youtu.be))/";
    final String[] videoIdRegex = { "\\?vi?=([^&]*)","watch\\?.*v=([^&]*)", "(?:embed|vi?)/([^/?]*)", "^([A-Za-z0-9\\_-]*)"};

mayuroks

open class Animal {  // Parent class
    var name: String? = null  // Nullable variable
    var legs: Int = 0         // Non-nullable variable
    lateinit var map: HashMap<Integer, String>  // Variable inited later in the code

    constructor(legs: Int) {
        this.legs = legs
    }

    constructor(legs: Int, name: String) {

mayuroks

// Use var to declare a variable, whose value can be changed later
var b: String = "Wow"

// val in Kotlin is same as final in Java
val a: Int = 0

// To initialize a variable as null
var c: String? = null

// Initialize a variable later in the code using lateInit

mayuroks

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <TextView
        android:id="@+id/tvStatus"

mayuroks

public class MainActivity extends AppCompatActivity {

    private ApiService apiService = HttpClient.getApiService();
    private TextView tvStatus, tvInfo;
    private Button btnHttpRequest, btnReset;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

mayuroks

public class SchedulerProvider {

    // UI thread
    public static Scheduler ui() {
        return AndroidSchedulers.mainThread();
    }

    // IO thread
    public static Scheduler io() {
        return Schedulers.io();

mayuroks

public class HttpClient {
    private static final String API_BASE_URL = "https://jsonplaceholder.typicode.com/";

    private static Retrofit retrofit = new Retrofit.Builder()
            .baseUrl(API_BASE_URL)
            .addCallAdapterFactory(RxJava2CallAdapterFactory.create())
            .addConverterFactory(GsonConverterFactory.create())
            .build();

    private static ApiService apiService = retrofit.create(ApiService.class);

mayuroks

public interface ApiService {

    @GET("/todos/1")
    Flowable<Todo> getFirstTodo();
}

mayuroks

public class Todo {

    String userId;
    int id;
    String title;
    boolean completed;

    public String getFormattedInfo() {
        StringBuilder builder = new StringBuilder();
        builder.append("Title: " + title + "\n\n");